does not specify a Swift version and none of the targets integrating it have the `SWIFT_VERSION` attribute set.

[!] Unable to determine Swift version for the following pods:

 

 

 - `HandyJSON` does not specify a Swift version and none of the targets (`XPX` and `XPXTests`) integrating it have the `SWIFT_VERSION` attribute set. Please contact the author or set the `SWIFT_VERSION` attribute in at least one of the targets that integrate this pod.

解决：

在项目Build Setting中添加SWIFT_VERSION,如下图：

 

 同时podfile中，在target上设置

ENV['SWIFT_VERSION'] = '5.0'

 

 结果：